/*
 * Copyright 2020-2030 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.gitee.minimalismstyle.fresh.sys.api.conversion

import com.gitee.minimalismstyle.fresh.common.core.conversion.TypeConversion
import com.gitee.minimalismstyle.fresh.common.core.exception.MessageException
import com.gitee.minimalismstyle.fresh.sys.api.service.SysKeyValueService
import org.springframework.beans.factory.annotation.Autowired
import org.springframework.stereotype.Component

/**
 * Dict value转key
 * @author maoxiaodong
 */
@Component
class KeyToValueTypeConversion(): TypeConversion<String, String> {

    @Autowired
    lateinit var sysKeyValueService: SysKeyValueService

    override fun convert(obj: String?, pattern: String?): String? {
        return if (obj == null){
            null
        }else if(pattern.isNullOrBlank()){
            throw MessageException(message = "请设置键路径")
        } else {
            sysKeyValueService.findByParentKeyPath(pattern).get(listOf()).find { obj == it.value }!!.key
        }
    }
}